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Valvatida

Valvatida

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2023-07-18 Snargl 0 minute 0 second

What is the animal Valvatida known for?

Valvatida is an order of starfish in the class Asteroidea, which contains 695 species in 172 genera in 17 families.

They are known for having conspicuous marginal ossicles, which are small plates on the edge of their arms.

They also have tube feet with suckers and paxillae, which are clusters of spines on their upper surface.

Some of them can reach up to 75 cm in diameter, while others are only a few millimeters.

They feed by extruding their stomachs and digesting their prey outside their bodies.

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Where does the Valvatida live?

The Valvatida are a diverse group of starfish
That live in many oceans near and far
They have different shapes and sizes, some are small and some are large
But they all have five arms and tube feet with suckers

Some Valvatida are colorful and bright, like the Linckia laevigata
They can be blue, green, orange or red, and they can regenerate
Some Valvatida are spiny and fierce, like the Acanthaster planci
They can eat coral reefs and cause great damage, and they are called crown-of-thorns

Some Valvatida are round and flat, like the Culcita novaeguineae
They look like cushions or pillows, and they have tiny eyes
Some Valvatida are long and thin, like the Dermasterias imbricata
They have leather-like skin and fringes, and they can move quite fast

The Valvatida are amazing creatures, they have many adaptations
They can survive in different habitats, and they have many functions
They are part of the marine ecosystem, and they have many interactions
They are fascinating to learn about, and they inspire many questions

Author:

What does the Valvatida look like?

The Valvatida are an order of starfish that have various shapes, sizes, and colors.
They usually have five arms with tube feet, and some have conspicuous plates or spines on their surface.

Some examples of Valvatida are:
  • Acanthaster planci, also known as the crown-of-thorns starfish, which has many long and venomous spines that can cause painful wounds to humans and coral reefs.

  • Archaster typicus, also known as the sand star, which has a flat and pentagonal body that is well adapted to burrowing in the sand.

  • Asterina miniata, also known as the bat star, which has webbed arms that can vary in number from four to nine.

  • Asterodiscides truncatus, also known as the cushion star, which has a thick and round body with short arms that resemble a pillow.

  • Dermasterias imbricata, also known as the leather star, which has a smooth and leathery skin that lacks spines or plates.

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